Machine to stamp decorative material upon articles



J; COHEN Nov. 15, 1949 MACHINE TO STAMP DECORATIVE MATERIAL UPON ARTICLES Fil'ed Aug. 22, 1946 I VE TOR.

i atentecl Nov. 15, 1949 UNITED STATES EXTENT OFFICE MACHINE TO STAMP DECORATIVE MATERIAL UPON ARTICLES Jacob Cohen, Boston, Mass., assignor of one-half to Harold E. Cole, Taunton, Mass.

Claims.

This invention relates to a machine used to impress gold leaf or other decorative material upon articles such as book covers.

My principal object is to provide an improved machine that will stamp portions of gold or bronze leaf, or other decorative material, upon a book cover or other article, which portions extend at an angle to and cross each other.

Machines commonly used to apply gold leaf or the like may stamp a plurality of lines or figures simultaneously only when they extend parallel to each other or at least only when the gold leaf strips do not cross each other, hence it takes several stamping operations to impress four right-angled border lines of gold leaf or other decorative material upon the cover of a book.

Another object is to use. narrower strips of decorative material to do the same work now commonly done with wider strips thus saving in material. This is accomplished by the use of guide clips that accurately guide the stripsv of decorative material to a predetermined position and yet keep it away from the hot die or other hot parts.

Another object is to make my invention adaptable to machines now used at small expense and within no loss of working time.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative arrangement of parts such as is disclosed by the drawings and specification. The nature of the invention is such as to render it susceptible to various changes and modifications, and, therefore, I am not to be limited to said disclosure; but am entitled to all such changes therefrom as fall within the scope of my claims.

In the drawings:

Figure 1 is a front elevational view of my machine.

Figure 2 is a top plan view thereof.

Figure 3 is a top plan view of my new guide clip.

Figure 4 is an edge elevational view of my new guide clip.

Figure 5 is a fragmentary, front elevational view of a left corner of my machine showing the die, my guide clip and the strip of gold leaf in normal position, and also, by dot and dash lines, indicating them moving to position for application to an article such as a book cover.

As illustrated, my machine has die stamping means embodying actuating means, such as the I usual arbor press it], operated by a handle it. Attached to said arbor press Ill is the' usual heating member I2 to which a die is attached that consists of-an attaching plate. l5 and a die face member [5, these latter two usually being separate and attached together to provide a die. The actual lines on the die face member Hi that are impressed upon the-article A to be gold-leafed I term an impression, which is located inwardly of the outer portion H of the die attaching plate [5.

Side guide members I8 are bolted-as at [9 to said die attaching plate l5. Bolts 20 hold said die to said heating member 12.

Supporting brackets 22 are bolted as at 23 to said heating member l2, on which brackets feed rolls 25 are mounted which carry the decorative strips S of material to be impressed. Since the decorative strip S is not entirely used or broken in the process of application to an article there is provided, for each feed roll 25, a take-up roll 26 mounted on a said supporting bracket '22 likewise attached to said heating member l2. There-are four each of these rolls 25 and 26 provided from which four strips S of the-decorative material extend at right angles to each other when there are four sides to said die impression. Each r011 25 and 25 rotates on its own axle pin 28 set in a said bracket 22.

The number of said'decorative strips and the angles at which they extend may be varied in number and'direction. There should be, however, a space 32 between said die, which is hot when in operation, and said decorative strips S.

To operate a die stamping means there is provided the usual table or bed'i-M on which the article A to be gold-leafed or otherwise decorated lies, and said die is actuated downwardly into contact with said decorative strips S and article A, or in some machines, the bed is moved thereby carrying article A thereon and strips S into contact with a stationary die.

To accurately guide said decorative strip S I provide guide clips 36 which are made of spring material, preferably a metal such as spring brass. Said clips are held to said die by a screw 31 which extends through a hole 39 in an anchor portion 38 of said guide clip 36. Said clip 36 has a spring body portion 40 which yields when pressure of said die is applied to it during the decorative operation and immediately resumes its original position when the pressure is removed. Said clip spring body 40 extends at an angle to said anchor portion 38' of less than degrees, the angle shown being less than 30 degrees, although it may be varied as conditions require. A dividing line 4| where said clip 36 is bent, distinguishes said spring body 40 from said anchor portion 40. In said spring body 40 an opening 42 is preferably made to provide air space or insulation to keep the temperature of said guide clip 36 relatively low so the gold leaf strip will not melt when in contact therewith. At the outside end of said spring body 40 are two guide fingers 43 with a space or slot 44 between them in which said decorative strip S extends. This guide space 44 is preferably slightly wider than the width of said strip S being used.

The ends 43a of said fingers are turned over so they extend at an angle to adjoining portions thereof thus avoiding a sharp or rough edge. Said spring body portion 40 also has a turned over portion 46 to provide a smooth edge where the inner extremity of said guide space 44 commences.

My guide clips 36 are attached to said die at said attaching plate outer portion l1 and extend away from said die impression towards the outside of my machine. They are shown so attached in said Figure 2 and extend downwardly from said movable die as shown, consequently when the die approaches said bed 34 said clip spring body 40 tends to straighten out as shown in the dot and dash lines in Figure 5 of the drawings, thus allowing said die impression to strike said decorative strip S and impress the decorative material it carries upon the article A. Upon release of the pressure upon said die said spring body 40 returns to its original or normal position thereby separating said decorative strip S from said die.

While I prefer to make my guide clip of a single piece of spring material, there could be substituted a separate anchor portion connected in some well known way, as by a spring hinge, to said body portion 40.

If it is desired to avoid contact of said decorative strips S, where they cross each other, the angle of said body portion to said anchor portion '38 may be varied in each said guide strip so they will be in different horizontal planes in normal position and will so return when after actuation, my die stamping means returns to normal position.

I have made my guide clip of thin gauge sheet spring brass, such as 28 gauge; but other spring material and of other thicknesses may be used successfully.

What I claim is:

1. A machine of the class described comprising die stamping means having a die impression and members to hold strips of decorative material in such angular relation to each other that said strips may cross each other opposite to said die impression, guide clips and means attaching them to said die stamping means, said guide clips being outside said die impression, and so positioned that said strips may pass through a portion of said guide clips, said guide clips each embodying an anchor portion and a spring body portion extending at an angle from and connected to said anchor portion, said body portion being adapted, when force is applied to it, to

assume a lesser angle with relation to said anchor ing die stamping means having a die impression and members to hold strips of decorative material in such angular relation to each other that said strips may cross each other opposite to said die impression, guide clips and means attaching them to said die stamping means, said guide clips being outside said die impression and so positioned that said strips may pass through a portion of said guide clips, said guide clips each embodying an anchor portion and a body portion extending at an angle from and connected to said anchor portion and movable with respect to said anchor portion when force is applied to it and adapted to automatically return to its original position when said force is released, said body portion having a slot therein through which a said strip may pass.

3. A machine of the class described comprising die stamping means embodying a die member having a die impression, a die plate attached to said die member and having a portion extending outside of said die impression, members to hold strips of decorative material in such angular relation to each other that said strips may cross each other opposite to said die impression, and guide clips attached to said die plate and being outside said die impression and so positioned that said strips may pass through a portion of said guide clips, said guide clips each embodying an anchor portion and a spring body portion extending at an angle from and connected to said anchor portion, said body portion being adapted, when force is applied to it, to assume a lesser angle with relation to said anchor portion and to automatically return to its original position when said force is released, said body portion having a slot therein through which a said strip may pass.

4. A machine of the class described comprising die stamping means embodying a die member having a die impression, a die plate attached to said die member and having a portion extending outside of said die impression, members to hold strips of decorative material in such angular relation to each other that said strips may cross each other opposite to said die impression, and guide clips attached to and extending laterally beyond said die plate and being outside said die impression and so positioned that said strips may pass through a portion of said guide clips, said guide clips each embodying an anchor portion extending substantially parallel to said die plate and a spring body portion extending below said die plate at an angle from and connected to said anchor portion, said body portion being adapted, when force is applied to it, to assume a lesser angle with relation to said anchor portion and to automatically return to its original position when said force is released, said body portion having a slot therein through which a said strip may pass.

5. A machine of the class described comprising die stamping means embodying a die memat substantially right angles to each other so positioned that said strips may cross each other opposite to said die impression, and guide clips attached to said die plate and being outside said die impression and so positioned that said strips may pass through a portion of said guide clips, .said guide clips each embodying an anchor portion and a spring body portion extending at an angle from and connected to said anchor portion, said body portion being adapted, when force is applied to it, to assume a lesser angle with relation to said anchor portion and to automatically return to its original position when said force is released, said body portion having a slot therein through which a said strip may pass.

JACOB COHEN.

REFERENCES CITED Number 6 UNITED STATES PATENTS Name Date Smith Feb. 22, 1916 Ley Feb. 4, 1919 Boekner May 31, 1927 Luedtke et a1 May 28, 1929 Brenner Mar. 16, 1933 

